Apparatus for producing artircial respiration



1N0 Model. 2 Sheets-Sheet 1.

4 WP. z. DBSANT. APPARATUS FOR PRODUCING ARTIFICIAL RESPIRATION.

No. 514,448. Patented Feb. 13 1 1894' mm 41W i 1 1 3 3 i 1 M 1.5

Zzinews r I /m- M (No Model.) 2 Shets-Sheet 2 W. P. z. DESANT. APPARATUSFOR PRODUCING ARTIFICIAL RESPIRA TION.

No. 514,448. Pmcented Feb. 18, 1894.

I Z 22 aes 13962241 0) UNITED STATES PATENT WILLIAM F. 2. DESANT, or newYORK, N. Y., Assrcnon Te'rnn nnsAiI'r- I ELECTRIC COMPANY, on OHIO.

APPA'RnTus Fee PRonuctNG 'RTI filCiAL Restitution! srncmon'rxon formingpm of Letters Patent No, 514,448, dated February is, 1894.Applloatlonfiled April '1, 1893. Saris-1N0. 469.444. (Nomodeh) I To allwhom it may concern: the mouth and consequently the lungs of the Be itknown that 1, WILLIAM E. Z. DESANT, patient. The tube 22, having anupwardly acitizen of theUnited States, residing at New opening valve 23,efiects communication be- Ycrk',in the county of New York and State oftween the chamber 19, and the pump cyliu- New York, have inventedcertain new and der 2. v V p r V useful Improvements in Apparatus forPro- 24, is a discharge tube from said cylinder 2, dueingArtificialRespiration; andldo hereby having an outwardly opening valve25.

declare the following to be a f all, clear, and ex- The operation of myinventionis clear from act description of the invention, such as willthe above description. The tank -14, being enable others skilled intheart to which it apfilled with the desired gas and the mouth flpertainstomake and use the same. piece 21, being placed in the mouth of the Myinvention censists'ofa simple apparatus patient and the shaft 8, beingoperated either I for forcing ifresh; air or, anydesired mixture by thehandles 9, or the gear 10, the following of oxygen czoneor other gasesinto thelnngs, vaction 0f the various parts'will-take ,placezvda-patient and withdrawing the; conientsof on thedow'n'ward thrust ofthe pistons 5, the said lungs alternately s9 as to produce art-i.contentsof the pumpcylinder 3;wili-he forced ficial respiration. 8 r

through thevalve 18, and the chamber 19, Intheaccompanying sheet ofdrawings, f and tube '20, into the patientslungs. The Figure 1, is' aside view andpartial sectionof contents ofthepump cylinder 2,will beforced 30 my preferred form of apparatus. Fig. 2, is a out into the openair through theiopening detailed view showing themethod of operatvalve25.1:0h the upward stroke of the pising the apparatus by an electric orother men tons 5, the valve 18, will close and the valve tor. "Fig. 3hows amodification. 16, will open filling the pump cylinder 3, withThroughout the drawings like reference aportion or theeontentsof tank14. At 'the. g5 figures refer to like parts. 5 same time the valve 23',willopen and the con-- '1 1 is theinaiu frame ofthe double pump tentsofthe patients lung's will be drawn into which is one form of myinvention, This the pun: cylinder 2. On the succeeding pump has twocylinders 2-and 3, mounted on downward stroke of the piston theportion'ol"v the base 4; These cylinders have pistons 5, the oxygen orother gases entrapped in the 0 operated by the connecting rods 6, andcrank pump cylinder .3, will he forced into the pa- 8o 1 disks 7, ontheshaft 8, in the usual manner, tients lungs by the closing of the-valves16, The shaft-8 is journaled in bearings onthe and 23, and heopening ofthe valve 18. At,

frame 1, and the crank pins may be continued the same timethe discharge'from the lungs in the form of haudlest), as shown in Fig. 1, which hadbeen drawn into the pump cylin- 5' so that the pumps may be operatedbyhand. der 2, will be forced through the opening A'gear wheel 10, on,said shaft maybe made valve 25, into the open air. Thus'the action"tome'sh with-the-gearll', on-tli'e shattl2,.of.v of-thefpump will becontinuous, alternately an electric motor-13, or with any suitable mo-vfilling the patients lungs with the life giving tor, itthe pp-mpis to'berun by power. gases and then emptying the lungs into the" "14; is aportion 0fa tank containin'gtthe open air.- oxygen or other gases whichare to be forced The modification of my invention, illusinto thepatients lungs. The tube 15, havtrated inrFig, 3 is intended to produceamore ing an outward opening valve 16, effects comcompact and lighterform of apparatus 'but munication between the tank 14, and cylin-, whichoperates on identically the saine prinder 3. The tube- 17 having adownwardly 'cipl'es as the first form above described? In 5 1 openingvalve 18, effects communication -bethe construction illii'eti'ated 33 isalight frame tween the cylinder 3, and the chamber 19,, on which the,l)ellows 32 and the bellows 3 1;: Tli flexible tube: 20,013 any desiredlength, are mounted. Eachhellows ta eq ifi le placefi terminating in themouth piece 21, effects. and performs the" function of o e-ofthc; l

5 6? communication between the'chamher 19, and

inders 2 or 3 in Fig. 1, and is an exact eqiii; a} roo M their valves 16and operate in exactly the same manner as do the same'parts in Fig. 1.The tube 19 takes the place of the chamber 19 in Fig. 1, and theconnecting pipes 17.and 22 have their equivalents in the said tube. Thevalves 18 and 23 operate the same in Fig. 3 as in Fig. 1. An adjustablestroke may be given to the bellows by shifting the position of the rods29 and 30 along the slot shown in the ends of the walking beam 26. Ofcourse, various. changes cduld be made in parting from the spirit of myinvention. In cases where fresh atmospheric air is to be used instead ofpreparedgas it would only be necessary to have the tube 15 or tank 14open to the air instead of to the receiver of prepared gases. V

Having therefore described my invention,

-nection between said cylinders,

the details of my apparatus w'ithout de-" what I claim as new, LettersPatent, is- I 1. The combination of a double cylinder force pump, aninlet valve for one cylinder, an outlet valve for the other cylinder, acontwo valves in said connection which open away from the cylinderhaving the inlet valve, and a mouth and desire to secureby 30 $1899paning. intotsaidtconnection between said two last mentioned valves,substantially as described; 4 '2. The combination of a double cylinderforce pump, an inlet valve for'one cylinder,

an outlet valve for the other cylinder, a connection between saidcylinders, two valves in 'said connection which open away from thecylinder having the inlet valve, and a mouth piece opening into saidconnection between .said last two mentioned valves, together with a tankfor preparing gases connected to the first mentioned inlet valve,substantially as described. 7 V

. In testimony whereofI afiix my signa-tnrein presence of two witnesses.

WI IAM: z. DESANT. Witnesses? A. P. SMITH, .WARREN W. Fos'rnn.

